How many movies have Gautham Vasudev Menon and M. S. Prabhu collaborated on?

They have worked on 3 movies together! Their first movie together was Ekk Deewana Tha (2012) while their highest rated movie together was Yeto Vellipoyindhi Manasu (2012). They have not worked together since Neethaane En Ponvasantham (2012). They are most known for their romance films together.